What does this sign indicate?

What does this sign indicate?
A)Exit on the right in 300 metres.Correct
B)Exit on the left in 300 metres.
C)Exit in 300 metres.
The sign indicates on a motorway, dual carriageway or road for motor vehicles, that 300 metres ahead there is an exit on the right, since the diagonals are ascending from left to right. In addition, the sign will be located on the right of the road.
If the exit were on the left, the sign we would find would be the first of the following: